169 



12. P. conicum, Baudon. 



Baudon. Pisid. Fr. 50, fl. v, f. B, 1857. Prime. Cat. Corb. 

 17, 1863. France. 



13. P. consanguineum, Prime. 



Smith. Inst. Misc. Coll., Prime Monog. Corb. 76, f. 86, 

 1865. Cuba, West Indies. 



14. P. cuneatum, Bielz. 



Bielz. Moll. Siebenb. 1863. Transylvania. 



15. P. duplicatum, C. Pfeiffer. 



Ci/clas dupUcata, C Pfeiffer, System. Arnord. 230, 1821. 

 Musculium duplicatum, H. & A. Adams, Gen. Rec. Moll, ii, 



451, 1858. 

 Pisum duplicatum, H. & A. Adams, Loc. sup. cit. ii, 660, 



1858. 

 Pisidium duplicatum, C. Pfeiffer, Prime Cat. Corb. 17, 



1863. G-ermany. 



16. P. Ferroense, Mb'rch, Cat. Suenson, 43, 1857. 



Prime Cat. Corb. 17, 1863. Farroe Islands. 



17. P. ferrugineum, Prime. 



Proc. Soc. N. H. Bost. iv, 162, 1851. J. N. H. Bost. vi, 

 362, pi. xii, f, 8—10, 1852. Prime, Cat. Corb. 15, 1863. 

 Smith. Inst. Misc. Coll., Prime Monog. 71, f. 77, 78, 

 1865. U. S. of America. 



18. P. fuscum, Parreys. 



Ilaydinger, Berichte vii, 211, 1851. Germany. 



19. P. Gassiesanum, Dupuy. 



Gassies, Moll. Agen. 207, pi. ii, f. 11, 1849. 

 Pisidium Normandianum, Dupuy, Loc. sup. cit. 206, 1848. 

 Pisidium tetragonum, Normand, Cycl. D^pt. Nord. 5, 1854. 

 Pisum vitreum, Deshayes (pars), Brit. Mus. Cat. Conchif. 277, 



1854. 

 Pisidium Baudonianum, de Cessac, Bull. Soc. Sci. Nat. 



Creuse. ii, 1855. 

 Pisidium Gassiesianum, Dupuy, Baudon Pisid. Fr. 26, pi. i, 



f. F, 1857. France. 



20. P. Gundlachi, Arango. Cuba, West Indies. 



21. P. Harfordianum, Prime. Mendocino Co., California. 



22. P. Henslowianum, Jenyns. 



Pera Hensloiviana, Leach, in litt. in Mus. Brit. 1820. 

 Cyclas acuta, C. Pfeiffer, System. Arnord. 230, 1821. 

 Tellina Henslowana, Sheppard, Trans. Linn. Soc. Lond. xiv, 

 150, 1823. 



